期刊
JOURNAL OF APPLIED POLYMER SCIENCE
卷 94, 期 6, 页码 2489-2493出版社
WILEY
DOI: 10.1002/app.21209
关键词
PA 6; hindered amine; tertiary amine; stability; dyeability
PA 6 resin was produced in a hydrolytic-polymeric process m which epsilon-caprolactam was polymerized in the presence of water as initiator, isophthalic acid and benzoic acid as chain regulators, by polymerizing caprolactam in the presence of 7.5% by weight of water, 0.2% by weight of isophthalic acid, 0.1% by weight of benzoic acid, each percentage being based on caprolactam. By adding hindered piperidine amine and/or tertiary amine to the polymeric system, the effects of additives on the polymer were studied. The results showed that: the addition of 0.1 similar to 0.2% additives can improve the melt stability of polyamide 6; the addition of 0.2% additives can protect mechanical properties of polyamide 6 fibers after exposure to high temperature; and the addition of 0.05 similar to 0.25% additives can increase the amino end group content of polyamide 6 and thereby increase the dyeability of polyamide fibers. (C) 2004 Wiley Periodicals, Inc.
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